The NJM78M08A is a 3-Terminal Positive Voltage Regulator manufactured by New Japan Radio. This regulator provides a stable 8V output voltage and is designed for a wide range of applications requiring a regulated power supply with moderate current capability.

Applications

• Voltage regulation for microcontrollers and microprocessors
• Power supplies for small electronic circuits
• Post-regulation for switching power supplies
• Battery chargers
• Linear regulators in various electronic devices
• Local regulation for sensitive analog circuits
• Powering sensors and transducers

Features

• Fixed 8V Output: Provides a fixed and stable 8V DC output voltage.
• Positive Voltage Regulator: Regulates positive input voltages to a fixed positive output.
• Medium Current Output: Capable of supplying moderate output current compared to the L-series regulators.
• 3-Terminal Device: Simple and easy to use with only three pins: Input, Output, and Ground.
• Short-Circuit Protection: Includes built-in short-circuit protection to prevent damage from output shorts.
• Thermal Overload Protection: Provides thermal overload protection to prevent damage from excessive heat.
• Safe Operating Area Protection
• Operating Voltage: Specified input voltage range.
• Package: TO-220 or similar through-hole package (package type can vary).

Benefits

• Stable Voltage Supply: Provides a consistent and reliable 8V power supply.
• Easy to Use: Simple three-terminal configuration simplifies circuit design.
• Protection Features: Short-circuit and thermal overload protection enhance reliability.
• Cost-Effective: Provides a cost-effective solution for voltage regulation.
• Higher Current Capability: Delivers more current than the L-series, suitable for applications with higher power demands.

Additional Details

The NJM78M08A typically requires a heat sink for proper operation, especially when supplying higher output currents. External capacitors are recommended on the input and output for stable operation and noise filtering. The datasheet provides detailed information on heat sink requirements and capacitor selection. It is crucial to consult the manufacturer's datasheet for detailed specifications, including the input voltage range, output current limits, thermal resistance, and recommended external components. The device's robust protection features make it a reliable choice for various power supply applications.